func getCharFilters(charFilterNames []string, cache *registry.Cache) ([]analysis.CharFilter, error) {
charFilters := make([]analysis.CharFilter, len(charFilterNames))
for i, charFilterName := range charFilterNames {
charFilter, err := cache.CharFilterNamed(charFilterName)
if err != nil {
return nil, err
}
charFilters[i] = charFilter
}
return charFilters, nil
}
func AnalyzerConstructor(config map[string]interface{}, cache *registry.Cache) (*analysis.Analyzer, error) {
zFilter, err := cache.CharFilterNamed(zero_width_non_joiner.Name)
if err != nil {
return nil, err
}
unicodeTokenizer, err := cache.TokenizerNamed(unicode.Name)
if err != nil {
return nil, err
}
normArFilter, err := cache.TokenFilterNamed(ar.NormalizeName)
if err != nil {
return nil, err
}
normFaFilter, err := cache.TokenFilterNamed(NormalizeName)
if err != nil {
return nil, err
}
toLowerFilter, err := cache.TokenFilterNamed(lower_case_filter.Name)
if err != nil {
return nil, err
}
stopFaFilter, err := cache.TokenFilterNamed(StopName)
if err != nil {
return nil, err
}
rv := analysis.Analyzer{
CharFilters: []analysis.CharFilter{
zFilter,
},
Tokenizer: unicodeTokenizer,
TokenFilters: []analysis.TokenFilter{
toLowerFilter,
normArFilter,
normFaFilter,
stopFaFilter,
},
}
return &rv, nil
}